4664260661 has 2 divisors, whose sum is σ = 4664260662. Its totient is φ = 4664260660.

The previous prime is 4664260649. The next prime is 4664260691. The reversal of 4664260661 is 1660624664.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2380854436 + 2283406225 = 48794^2 + 47785^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4664260661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4664260621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2332130330 + 2332130331.

It is an arithmetic number, because the mean of its divisors is an integer number (2332130331).

Almost surely, 2^4664260661 is an apocalyptic number.

It is an amenable number.

4664260661 is a deficient number, since it is larger than the sum of its proper divisors (1).

4664260661 is an equidigital number, since it uses as much as digits as its factorization.

4664260661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 41.

The square root of 4664260661 is about 68295.3926776909. The cubic root of 4664260661 is about 1670.8120712552.

The spelling of 4664260661 in words is "four billion, six hundred sixty-four million, two hundred sixty thousand, six hundred sixty-one".